-5-
The Phase Rotation Indicator
has;
A LED to display clockwise rotary direction L1L2L3.
A LED to display counter clockwise L2L1L3.
The Earth Leakage Tester
comprise of the Phase Selector, which
permit the selection to connect Phase 1 ( L1 or R ) to the earth
Leakage tester, or Phase 2 ( L2 or S), or phase 3 (L3 or T).
The Industrial Earth Leakage Tester injects a fault current between
one of the phase and earth.
When utilized to test on a single phase system, the 3 Phase
Presence and rotation features and indications must be disregarded.
The Selector Switch must be on the R position, and the R(L1) phase
is connected to the Phase(Line), the green socket to Earth.
Neutral wire is not utilized in the testing of the Earth leakage Circuit
Breaker.
6. Operating Instructions
Determination of the rotary field direction and phase presence
On a 3 Phase System, the sequence of the 3 phases determine the
rotation of a 3 phase motor connected to that system.
The correct 3 Phase Sequence R(L1), S(L2), T(L3) results in a
clockwise rotation of the connected motor.
Connect the Test Leads to the sockets of the Instrument, respecting
the correct color. Red to R(L1), White to S(L2), Blue to T(L3).
Clip the test probes to the three mains phases, R(L1), S(L2), T(L3).
When connecting to a voltage superior to 100V AC, the
corresponding neon lamp will start to glow, indicating the presence
of the voltage on it's corresponding lead (L1, L2, L3 lamps).
